Supero SC216A-R1200UB User Manual page 81

SC213 Chassis Manaual
Dual Port and Cascading Configurations
D-9 Single and Dual Port Expanders
Single Ports
SAS-216EL1 backplanes have a single-port expander on the daughter card, that
accesses all 24 drives and supports cascading.
Figure D-5: SAS-216EL2 Single Port Configuration
Dual Ports
SAS-216EL2 backplanes have dual-port expanders on the daughter cards, that
access all 24 drives. These dual-port expanders support cascading, failover, and
recovery.
Port B
Secondary Ports
Expander 2
J2
1
2
MH1
C240 C249
C243 C241 C252 C245 C251 C250 C246 C248 C247
C253
C242 C244
D1
U2 BC1
C76
R5
R11
C178 R112
Rev:1.01
MH4
PRI_MODE1
Figure D-6: SAS-216EL2 Dual Port Configuration
From HBA or higher
backplane
J1
MH2
PRI_EXP1
PRI_J1
PRI_J2
J2
J3
MH3
PRI_J3
To Lower Backplane in
Cascaded System
D-10
From HBA or higher
Port A
Primary Ports
Expander 1
J2
1
2
MH1
J1
C243 C240 C249
C241 C252 C245 C251 C250 C246 C248 C247
C253
C244
C242
D1
PRI_EXP1
C76 U2 BC1
R5
R11
C178 R112
Rev:1.01 J2
J3
MH4
PRI_MODE1
To Lower Backplane in
Cascaded System
From HBA or higher
Port A
Primary Ports
Expander 1
J2
1
2
MH1
C240 C249
C243 C241 C252 C245 C251 C250 C246 C248 C247
C253 C244
C242
D1
PRI_EXP1
C76 U2 BC1
R5
R11
C178 R112
Rev:1.01
J3
MH4
PRI_MODE1
To Lower Backplane in
backplane
MH2
PRI_J1
PRI_J2
MH3
PRI_J3
backplane
J1
MH2
PRI_J1
PRI_J2
J2
MH3
PRI_J3
Cascaded System